Method of making a container for perishable commodities



Jan. 5, F, D, LINAcRE ETAL 3,

METHOD OF MAKING A coNTANR FoR PERsHABLE coMMoDTES Filed Aug. 14, 1962 2 sheetssheet 2 on zone 9 is now visible th ough the Sheet. The pocket So forlT1ed is at one edge of a coveT fiap having the lip 11 at ifs oppo ife edge.

II the illnStfated eXan1ple of the invention, -the Sheet 8 Was initially as long aS fhree niShed pouohes affanged of fhe Shoef 8 peTnlanently to each othef af the pooch edgeS.

The poncheS illIlStfafed in FIG. S aTe in a niShed condifion and affef. they have been lled fheho1ding pocket of each pouch may be folded pwaTdy about itS fop edge, and its bottom edge may then be tucked ondeT the lip 11 So cloSing the pouch and sealing its contentS ffom the afmoSphere.

The Structnfe of the finiShed pouch Inay be Teadily onderstood with TefeTence to FIGS. 6 and 7 in vvhich the va TiouS sheet poftions beaT the saIne efeTence nuIneTalS aS they do in FIGS 1 and S.

It vviH be ppreci atod that the Tnethod of fhe invention Inay be carfied out as a continnous process in which ovent a large 1ee1 of plastics stTip of a propriate wid[h nlay be travelled through a conventional continuouS printing pfeSS and fhen thTongh guide xtufeS adapted fo cUr1 the Stfip edges ovef to pToduce the TequiSfte folding theTeof and SubSequently to a conVontfonal gL1il1()tine and heat Sealing appaTatus.

In otheT exaInpleS of the invenfion the Sheets of the double layof are not neceSSarily the San1e, in parficnlaf a relatively thick and poSSibly opaqUe inneT Sheet n1ay be uSed aS the n1ain poUch walI With a thin tranSpafent outef Sheet SeTving pfiInaTily to cafry the a )plied Inattef.

A Inethod of Inaking oucheS beafing pfinted IIlafteT con1priSing The stepS of revefsely pfinting Said natfeT on one Side of Tst zone of a Sheet of pliable, tranSparent, thermoplaStic mateiaL foding Said Sheef so as fo SUpe in1poSe a second Zone thereof upon SaiI firSt zone so aS to cove the feverSely pfinted fnatter theTeon and foTnl donble layer and a protruding lip edge Zone, fo1dng abot onethifd of Said dobe layer U on itSelf and heat Sealing the edgeS of Said folded oveT double layef to fofm an open nlouthed poUCh vvhefein the pfinted Inaftez iS Unfouchabe,

Refereces C hy fhe EXaminer UNITED STATES PATENTS 2 ZZ4,017 12/40 GuTWick 22448 FoREIGN PATENTS Z6,796 12/OS En ]and. 

